26013940 has 24 divisors (see below), whose sum is σ = 55135080. Its totient is φ = 10309248.

The previous prime is 26013917. The next prime is 26013959. The reversal of 26013940 is 4931062.

It can be written as a sum of positive squares in 4 ways, for example, as 8608356 + 17405584 = 2934^2 + 4172^2 .

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3787 + ... + 8146.

It is an arithmetic number, because the mean of its divisors is an integer number (2297295).

Almost surely, 2^26013940 is an apocalyptic number.

26013940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26013940 is an abundant number, since it is smaller than the sum of its proper divisors (29121140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26013940 is a wasteful number, since it uses less digits than its factorization.

26013940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12051 (or 12049 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 26013940 is about 5100.3862598827. The cubic root of 26013940 is about 296.3025425034.

The spelling of 26013940 in words is "twenty-six million, thirteen thousand, nine hundred forty".